/Engine/Plugins/Runtime/nDisplay/Source/DisplayClusterColorGrading/Public/IDisplayClusterColorGrading.h
Gets the singleton used to manage the color grading drawer
[IDisplayClusterColorGradingDrawerSingleton](API\Plugins\DisplayClusterColorGrading\IDisplayClusterColorGradingDrawe-) & GetColorGradingDrawerSingleton() const